<template>
  <ul >
    <li 
    @mouseenter="onMouseenterFn"
    @mouseleave="onMouseleaveFn"
    :class="isActive?'active':''"
    >
      <label>
        <input type="checkbox" :checked="done" @click="changeChecked(id)"/>
        <span>{{thing}}</span>
      </label>
      <button 
      class="btn btn-danger"
      @click="deleteDate(id)">删除</button>
    </li>
  </ul>
</template>

<script>
export default {
  name: "Item",
  data(){
    return {
      isActive:false
    }
  },
  props:["id", "thing", "done","changeChecked","deleteDate"],
  methods:{
    onMouseenterFn(){
      this.isActive = true
    },
     onMouseleaveFn(){
      this.isActive = false
    },
  }
};
</script>

<style scoped>
/*item*/
li {
  list-style: none;
  height: 36px;
  line-height: 36px;
  padding: 0 5px;
  border-bottom: 1px solid #ddd;
}

li label {
  float: left;
  cursor: pointer;
}

li label li input {
  vertical-align: middle;
  margin-right: 6px;
  position: relative;
  top: -1px;
}

li button {
  float: right;
  display: none;
  margin-top: 3px;
}

li:before {
  content: initial;
}

li:last-child {
  border-bottom: none;
}

li.active {
  background: rgb(230, 212, 212);
}

li.active button {
  display: block;
}
</style>
